Window-screen



J. W. CARMAN.

WINDOW SCREEN.

(No Model.)

Patented Mar. 9, 1886.

UNITED TATns FATnNT Trice.,

JOHN IV. CARHAN, OF MADISON, VISCONSIN.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 337,741, dated March 9, 1886.

Applicationled November l5), 18S-l. Serial No. 118,200. (No model.)

To @ZZ whom it may concern:

Be it known that I, JOHN W. GARMIN, a citizen of the United States, residing in Madison, county of Dane and State of Visconsin, have invented certain new and useful Improvements in Window-Screens, of which the following is a specification.

This invention relates to improvements in window-screens in which the scr en is mounted upon the spring-actuated roller confined in a case secured upon the side of the sash and open only on its under side, which said screen operates in connection with a bar or plate removably secured upon the window-sill in such a manner that the otherwise free end of the screen may be attached or detached at will from said sill.

One of the objects of this invention is to form such a connection between the edges of the screen fabric and the sash as to prevent insects, &c., from creeping in between the sides of the sash and the edges of the fabric.

A further object is to secure the screen in such a manner that it will be in a Vertical line with and lie against the inner edges of the weather-strips of the sash when in an outstretched condition.

Further objects are to automaticallj7 clamp the side edges of the outstretched screen against the weather-strips, so as to effectually exclude dust and insects from a room and prevent said edges from drawing or curling, as they will otherwise frequently do in the course of time, to the injury of the fabric and its effective winding upon the roller.

I attain these objects by devices illustrated in the accompanying drawings, in which- Figure 1 represents a central longitudinal section of a window-screen embodying my invention when the window is down and the screen not in operation. Fig. 2 is a similar view with the window-sash raised and the screen in its outstretched and operative position; Fig. 3, a similar View of an enlarged detail of the same.

Similar letters of reference indicate the same parts in the several figures of the drawings.

A indicates the side frame, and B the sill, of awindow; C, an ordinarylower sash, provided on its innerside with a lifting-plate, D; and ct b,

respectively, the inner and outer weatherstrips for the sides ofthe sash. On the outer side and lower end of the sash is a case, E, screwed or otherwise removably secured thereto and open on its bottom side, and so arranged with reference to the bottom of the sash that when the sash is in contact with the sill the case will form a close joint with the weather-strip c outside the sash, as shown in Fig. 1. Journaled and concealed in this case is an ordinary spring-actuated roller, d, to which is secured at one end a wire or other open fabric, F, suitable for screen purposes, the opposite end of which fabric is secured to the weather-strip c, which simply rests on the sill and is detachably held down by a spring-catch, G. In other words, the means for forming a stiff edge for catch purposes on the fabric also constitutes a weather-strip for the lower edge of the Sash when the sash is down, which said strip is detachable when it is desirable to raise the sash without using the screen. The ordinary rigid weather-strip may also be employed and the strip c rest upon it; but in either case the strip c not only serves to stiffen the fabric, but to closeand seal the case, so as to protect the fabric when not in use. One advantage of this construction is, that it dispenses with the necessity of removing the screen for preservation during cold weather, when its use is not desirable.

As will be seen by an inspection of Fig. 2, the above-described arrangement of the roller and strip c maintains the fabric outside of and substantially parallel with the weather-strip b, and hence by this arrangement alone no large aperture occurs between the edges of the fabric and said strip, as is the result when the fabric in its outstretched condition extends at an oblique angle to the strip, as before described. In order, however, to maintain the fabric with its unrolled edges at all times in contact with the side ofthe strip b, and to effectually exclude dust and insects from creeping in between the edges of the fabric and weather-strip, I have provided a bar, H, for each side edge of the fabric, mounted upon bow or other shaped springs, I, for automatically clamping the fabric to the strip. This bar is preferably of a length less than the length of a sash, so that it will operate as hereinafter described when the sash is but partly raised. At the lower end and on the outer edge of this bar is secured a spring, J, impinging against the weather-strip e of the outer sash, and secured to this bar at its upper end is an outwardly-curved spring, K, also bearing against the weather-strip e. By this arrangement of the spring K it not only serves to press the upper end of the bar inwardly against the Fabric, but to form a stop which, in lowering the sash, is engaged by the case, so as to force the bar outwardly from the fabric when lowering the sash from an elevated position, and by this means render the said bar or jaw,7 as it may he properly termed, automatic in its operation. While this bar or spring-actuated jaw constitutes an important feature of'my invention, and is preferably employed, its omission would not involve a departure from the invention before described.

The invention is not limited to a special form of case, catch device, or spring-seated Y z5 jaw, for it would be no departure therefrom to employ other forms of parts for performing substantially the same function attributed to these special forms of construction for carry ing ont this invention.

I am aware that screens mounted on rollers and secured directly to the sash or to a bar thereon have had their edges projecting between the weather-strip and a parallel bar actuated to press said edges against the weather-strip by an eccentric-lever; but such a device is objectionable, because notautomatic in its operation.

In another instance an ordinary sash in connection with which no screen is used has had a spring-actuated weather-strip pressing directly against the sash to form a close joint, excluding dust when the window is closed; but a strip of this character and as used could not clamp the edges of a screen, as herein set forth, and, besides, is not designed to be used in connection with a screen; and I therefore make no claim to either of t-he above devices, for they are essentially different from my invention. f

Having described my invention, what If claim, and desire to secure by Letters Patent,` 1s

l. The screen and the spring-actuated roller thereof', in combination with the strip b and a spring actuated baror jaw i'or automatically clamping the screen to the strip, substantially as described. g

2. The sash, the case secured thereto, the spring` actuated roller mounted in said case, and the fabric, in combination with the springactuated jaw, the stop K, and a project-ion on the sash for engaging said stop, substantially as described.

JOHN W. CARMAN.

Witnesses:

R. G. SIEBECKER, JOHN B. WIsER.

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